Ok folks. The wiseass level in this thread is running at about a nine... Let's tone it back to about a six, ok? I know the question seems basic and obvious to most of us, but we all had to start somewhere. There's no problem with giving the OP a little shit for not doing his homework, but make sure that valid answer comes across as well. If he's asking a question this basic, he's probably not going to "get" your sarcasm.
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To the OP, as already mentioned the two cars use completely different engine management systems. The NA version uses a flapper style Air Flow Meter that puts out a variable voltage signal. The Turbo car uses a Karmann-Vortex sensor that outputs a signal in kilohertz. The two systems are completely incompatible. (Neither system is a MAF btw...)
Also, as inferred above, dollar for dollar, trying to squeeze more power out of the NA engine is very expensive. There are few performance parts available for the NA that do very much, and in the end by spending a lot of money you might get close to what a stock turbo motor can do.
Your best bang for the buck is going to be an NA->T conversion or swapping completely over to a turbo setup.
